package com.itheima.sh.controller;

import com.itheima.sh.pojo.User;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.cloud.client.ServiceInstance;
import org.springframework.cloud.client.discovery.DiscoveryClient;
import org.springframework.cloud.openfeign.EnableFeignClients;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.client.RestTemplate;

import java.util.List;
import java.util.Map;

@RestController
@RequestMapping("consumer")
public class ConsumerController {
    @Autowired
    RestTemplate restTemplate;

    @Autowired
    DiscoveryClient discoveryClient;

    @GetMapping("{id}")
    public Map findUser(@PathVariable("id") String username) {

        //String url="http://localhost:8081/user/"+username;
        //解决方案:discoverClient
//        List<ServiceInstance> instances = discoveryClient.getInstances("user-service");
//        ServiceInstance instance = instances.get(0);//服务实例 管理的是 ip port
//        String host = instance.getHost();// ip
//        int port = instance.getPort();// port

//        String url = "http://localhost:8081/user/" + username;
        //     String url = "http://"+host+":"+port+"/user/" + username;
        //解决方案 2:ribbon 解决负载均衡
        String url = "http://user-service/user/" + username;


        Map map = restTemplate.getForObject(url, Map.class);
        return map;
    }
public User queryByIdFallBack(String id){
        User user=new User();
        user.setName("暂停服务");
        return user;
}
}
